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51.
Gerrit Hornung 《Datenschutz und Datensicherheit - DuD》2007,31(12):948
52.
We demonstrate a significant reduction in delay sensitivity against temperature in optical fibres, using a novel tight jacketed fibre structure. This technique has the cabability of producing fibre in which the optical delay is insensitive to temperature. This has potential in the field of sensors and fibre devices. 相似文献
53.
V. Hornung F. Le Du C. Starck G. Gelly C. Crusson D. Laffitte J. F. Vinchant D. Lesterlin 《Microelectronics Reliability》1996,36(11-12)
Ridge Integrated Laser Modulator (ILM) devices were fabricated using a butt-coupling technology based on two gas source molecular beam epitaxy. A complete stability evaluation was undertaken, including a reliability study on discrete lasers, discrete modulators and integrated devices. The butt-coupling integration process does not affect the reliability of the integrated devices. 相似文献
54.
Hornung J. Wang Z.G. Bronner W. Olander E. Kohler K. Ganser P. Raynor B. Benz W. Ludwig M. 《Electronics letters》1993,29(19):1694-1696
A molecular beam epitaxy (MBE) grown GaAs/AlGaAs multiquantum well laser, monolithically integrated with a laser driver was realised on 2 inch GaAs substrate wafers. In an optical data communication set up, performance up to data rates of 7.4 Gbit/s was demonstrated.<> 相似文献
55.
56.
ChristianH. Hornung Bart Hallmark MalcolmR. Mackley IanR. Baxendale StevenV. Ley 《Advanced Synthesis \u0026amp; Catalysis》2010,352(10):1736-1745
Herein we describe the preparation of a novel continuous flow multi‐channel microreactor in which the internal surface has been functionalised with a palladium coating, enabling its use in catalytic heterogeneous liquid‐phase reactions. Simple chemical deposition techniques were used to immobilise palladium(0) on the channel wall surface of a polymeric multi‐capillary extrudate made from ethylene‐vinyl alcohol copolymer. The Pd coating of the microcapillaries has been characterised by mass spectrometry and light and electron microscopy. The functional activity of the catalytic Pd layer was tested in a series of transfer hydrogenation reactions using triethylsilane as the hydrogen source. 相似文献
57.
Muro E Fragola A Pons T Lequeux N Ioannou A Skourides P Dubertret B 《Small (Weinheim an der Bergstrasse, Germany)》2012,8(7):1029-1037
The in vivo labeling of intracellular components with quantum dots (QDs) is very limited because of QD aggregation in the cell cytoplasm and/or QD confinement into lysosomal compartments. In order to improve intracellular targeting with QDs, various surface chemistries and delivery methods have been explored, but they have not yet been compared systematically with respect to the QD intracellular stability. In this work, the intracellular aggregation kinetics of QDs for three different surface chemistries based on ligand exchange or encapsulation with amphiphilic polymers are compared. For each surface chemistry, three delivery methods for bringing the nanoparticles into the cells are compared: electroporation, microinjection, and pinocytosis. It is concluded that the QD intracellular aggregation behavior is strongly dependent on the surface chemistry. QDs coated with dihydrolipoic acid-sulfobetaine (DHLA-SB) ligands diffuse freely in cells for longer periods of time than for QDs in the other chemistries tested, and they can access all cytoplasmic compartments. Even when conjugated to streptavidin, these DHLA-SB QDs remain freely diffusing inside the cytoplasm and unaggregated, and they are able to reach a biotinylated target inside HeLa cells. Such labeling was more efficient when compared to commercial streptavidin-conjugated QDs, which may be due to the smaller size of DHLA-SB QDs and/or to their superior intracellular stability. 相似文献
58.
Gerrit Hornung LL.M. Dr. Christoph F.-J. Goetz Univ.-Prof. Dr. Andreas J. W. Goldschmidt 《WIRTSCHAFTSINFORMATIK》2005,47(3):171-179
The new regulation of § 291a SGB V as well as political goals mandate the nationwide rollout of an electronic health insurance card in Germany by the 1st of January 2006. The legal framework is laid by the Modernization law for Statutory Health Care. However, major challenges remain in the development of the necessary framework architecture and the integration into existing hospital and physicians’ offices management systems. The health insurance card opens the perspective for electronic patient records, promising direct advantages for patients as well as for the health care providers involved. However, it remains to be seen how the currently ongoing dispute about the technical implementation of sensitive data storage involved (card or server based systems) might delay the realization of this ambitious project. 相似文献
59.
Ueda H. Okada K. Ford B. Mahony G. Hornung S. Faulkner D. Abiven J. Durel S. Ballart R. Erickson J. 《Communications Magazine, IEEE》2001,39(12):134-141
Broadband passive optical networks (B-PONs) have entered the commercial deployment phase in North America, Japan, and Europe. Nippon Telegraph and Telephone, BellSouth, France Telecom, British Telecommunications p.l.c., and SBC have developed a set of common technical specifications (CTS) for a B-PON system based on ITU-T Recommendations G.983.1, G.983.2 and G.983.3. They have deployed or plan to deploy B-PON systems based on this CTS. This article describes B-PON interface features, the outline of the CTS, and the deployment status of the B-PON systems around the world 相似文献
60.